Every time this is run, it tries to update existing entities such as users and articles first, and only creates them if they don't exist. This allows us to update all demo data on a live website that also has users without deleting any user data.
Note however that if you ever increase the ammount of demo users, you might overwrite real user data. E.g. if you first do:and then some time later:it is possible that some real user will have taken up the username that we use for the third user, which did not exist previously, and then hacks their articles away. So never ever do that! Just stick to the default values in production.
./bin/generate-demo-data --users 2 --articles-per-user 10
./bin/generate-demo-data --users 4 --articles-per-user 10
As a safeguard, to be able to run this in production you have to also pass the
./bin/generate-demo-data --users 2 --articles-per-user 10 --force-production
To first fully clear the database, including any real user data, before doing anything else, use
./bin/generate-demo-data --users 4 --articles-per-user 10 --clear
To clear the database and start with an empty database use